2 Answers
2

Although it is not included into the distribution jar, tinyWSDL has WSDL 2.0 -> WADL convertor. Obviously the service must be defined using HTTP Binding.
The WSDL 1.1 definitions must be converted into WSDL 2.0 first (also supported by tinyWSDL).

SOAP and REST are pretty different approaches and this tool would be pretty hard to make or configure. Not saying that these styles cannot be mapped 1:1 to each other, there are things you can make with SOAP and not with REST and vice versa.